So try not to take it personal...a person who lets the ugly on the inside show on the outside needs more kindness and understanding than they are capable of giving to someone else. Hard to do but necessary.
It is a choice to love even when you aren't feeling it. It is hard work sometimes but it is definitely worth it in the long run. Too many people give up too soon. However I am a realist and know there are times when that isn't an option especially when physical abuse is involved,